The effects on grain endosperm structure of an introgression from Aegilops speltoides Tausch. into chromosome 5A of bread wheat

Пшеничникова, Т. А.; Симонов, А. В.; Ermakova, Maria; Chistyakova, A. K.; Shchukina, L. V.; Морозова, Е. В.

doi:10.1007/s10681-010-0168-1

Cited by 17 publications

(10 citation statements)

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“…Total vitreousness is the sum of all vitreous grains plus half of semi-vitreous grains, and is expressed as percentage. Mean particle size was determined through flour particle formation using a PSH-4 unit (Russia) which establishes the relationship between dispersed particles, layer porosity and air permeability (Shibaev et al 1974;Pshenichnikova et al 2010). Genotypes with the largest mean particle diameter have the highest milling performance.…”

Section: Methodsmentioning

confidence: 99%

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Properties of grain, flour and dough in bread wheat lines with Aegilops markgrafii introgressions

Shchukina

Пшеничникова

Chistyakova

et al. 2017

Cereal Research Communications

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Various milling parameters, wet gluten content and key dough properties were analyzed for two sister lines of bread wheat with Ae. markgrafii introgressions in genetic background of cultivar Alcedo carrying a set of sub-chromosomal alien segments on chromosomes 2АS, 2ВS, 3ВL, 4АL and 6DL. The lines revealed higher grain vitreousness, larger particle size of flour, and higher wet gluten content in grain compared to cv. Alcedo. The flour from these lines also showed excellent water absorption and developed more resilient dough. The introgressions in the Alcedo genome caused no reduction in 1,000-grain weight. General improvement of the grain technological properties appears to be the result of introgressions into 2АS, 2ВS and 3ВL chromosomes. Coincidence of locations of Ae. markgrafii introgressions in chromosome with the QTLs positions for technological traits, revealed in bread wheat mapping populations, is discussed.Keywords: bread wheat, introgressions, Aegilops markgrafii, vitreousness of grain, flour particle size, gluten content in grain, physical and mixing properties of dough IntroductionWild crops' relatives represent a major source of genetic variations that have potential relevance for improving disease resistance and abiotic stress tolerance. For this purpose, a number of such relatives were studied within bread wheat breeding researches (Friebe et al. 1996;Gill et al. 2011). The wheat polyploidy allows maintaining a range of entire alien chromosomes in its genome in the form of addition and substitution lines. Some of these lines have been further used for generating sets of introgression lines carrying different sub-chromosomal fragments. The manifestation of genes encoding resistance to fungal diseases can be found in some of these generated lines (Lapochkina et al. 2003;Simón et al. 2007;Leonova et al. 2008). At the same time, this genetic material is considered to be a source of traits related to drought tolerance (Reynolds et al. 2007;Placido et al. 2013). Mapping populations were used for genetic analysis of wheat quantitative traits, which revealed that quantitative trait loci (QTLs) relating to different grain and flour parameters were scattered throughout different chromosomes. The lines with small introgressions in comparable genomic positions may add to allelic variability for these quantitative traits. This kind of diversity is still poorly understood and is not involved in the breeding process.Today, only one locus Gpc-B1 extracted from the wild tetraploid species Triticum dicoccoides (Olmos et al. 2003) is used in wheat breeding for high protein content in grain. Its effect has been studied in different genetic backgrounds and in various environments (Kumar et al. 2011;Tabbita et al. 2013;Vishwakarma et al. 2014). Thus, the gene can be used in breeding without any negative impact on yield. Description of the effects of other exotic alleles on grain protein content and flour sedimentation volume can be found in literature (De Pace et al. 2001;Kunert et al. 2007). Derivatives of a cross b...

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Section: Methodsmentioning

confidence: 99%

“…1 (according to Weidner (2004) abridged). The parent plants and the introgression lines were grown in field conditions in Gatersleben, Germany, as a single replicate in 2004. In 2010 Alcedo and the introgression lines were grown in two conditions: field and irrigated.…”

Section: Methodsmentioning

confidence: 99%

Properties of grain, flour and dough in bread wheat lines with Aegilops markgrafii introgressions

Shchukina

Пшеничникова

Chistyakova

et al. 2017

Cereal Research Communications

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“…Она несет ин-трогрессированный от Ae. speltoides локус мягкозерности Ha-Sp в коротком плече хромосомы 5А (Pshenichnikova et al, 2010). О наличии интрогрессии в дистальной об-ласти короткого плеча также свидетельствует присутствие субтеломерного повтора Spelt52 (Salina et al, 2001).…”

Section: материалы и методыunclassified

“…О затрудненной реком-бинации интрогрессированной хромосомы с хромосомой 5А пшеницы у гибридов с линией 84/98 w сообщалось в предыдущих работах (Симонов и др., 2009;Pshenichnikova et al, 2010;Симонов, Пшеничникова, 2012). Это сужало поле для отбора.…”

Section: материалы и методыunclassified

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The development of a new bread wheat genotype carrying two loci for endosperm softness

Симонов¹,

Chistyakova²,

Морозова³

et al. 2017

Vestn. VOGiS

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1 institute of cytology and genetics SB raS, novosibirsk, russia 2 leibniz institute of Plant genetics and crop Plant research (iPK), gatersleben, germany the technological purpose of grain and flour wheat is largely determined by the grains endosperm structure. its variability among wheat varieties depends mainly on the multiple allelism for a single Ha locus on chromosome 5D leading to a continuous variation of the trait. the grain endosperm can vary from hard and vitreous suitable for yeast baking to soft and floury favorable for confectionery and technical purposes. Furthermore, these traits, especially vitreousness, are strongly influenced by the growth conditions. earlier, the Ha-Sp locus was introgessed into chromosome 5a of the bread wheat line 84/98 w from Aegilops speltoides tausch., which reduces endosperm hardness and vitreousness, like the dominant allele of the Ha locus. this paper is the first to describe the obtaining and testing of the supersoft lines combining in their genotype the homoeoallelic loci Ha-Sp of the line 84/98 w and Ha of the soft grain cultivar chinese Spring. the lines were isolated from 6-8 generations of self-pollinated F 2 hyb rids. they consistently exhibit a greater grain softness than the parental forms under both greenhouse and field conditions. these lines can be used in the breeding of wheat cultivars, the flour of which will not require chemical baking powder in the confectionery industry. it is also possible to use them for technical purposes for the production of bioethanol. in addition, these lines may serve as a genetic model for the study of the functional activity of homoeoallelic genes in the complex polyploid genomes of plants.Key words: bread wheat; grain endosperm structure; Ha and Ha-Sp loci; supersoft wheat lines.Технологическое назначение зерна и муки мягкой пшеницы определяется в значительной степени структурой эндосперма зерновок. ее изменчивость у сортов мягкой пшеницы зависит в основном от множественного аллелизма по одному локусу, Ha, в хромосоме 5D, приводящего к непрерывной вариации этого признака. Эндосперм зерна может изменяться от твердозерного стекловидного, пригодного для дрожжевого хлебопечения, до мягкозерного мучнистого, благоприятного для кондитерских и технических целей. Кроме того, на данные признаки, особенно на стекловидность, сильное влияние оказывают условия выращива-ния. ранее в хромосому 5а линии 84/98 w был интрогрессирован локус Ha-Sp от Aegilops speltoides tausch., который снижает твердо-зерность и стекловидность эндосперма, подобно доминантному аллелю локуса Ha. в данной работе впервые описаны получение и испытание супермягкозерных линий, в генотипе которых объеди-нены гомеоаллельные локусы Ha-Sp линии 84/98 w и Ha мягкозер-ного сорта chinese Spring. линии выделены из шестого-восьмого поколений самоопыленных гибридов F 2 . Они стабильно в полевых и тепличных условиях демонстрируют большую, чем родитель-ские формы, мягкозерность. Эти линии могут быть использованы в селекции сортов пшеницы, для муки из которых не потребуются химич...

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Enlargement of the Genetic Diversity for Grain Quality in Bread Wheat Through Alien Introgression

Пшеничникова

Симонов

Shchukina

et al. 2015

Advances in Wheat Genetics: From Genome to Field

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Diverse technological purposes of bread wheat grain requires a broadening the genetic base of selection for quality traits. Introgressions potentially may affect technological properties of grain and fl our and add to a genetic variability of the trait. The aim of this work was to investigate the infl uence of introgressions from exotic tetraploid wheat Triticum timopheevii and wild cereal species, Aegilops speltoides and Aegilops markgrafi i into bread wheat on grain quality. The introgression from T. timopheevii including the microsatellite marker Xgwm636 into 2AS chromosome of cv. Saratovskaya 29 resulted in a signifi cant increase of gluten content in grain. The effect was confi rmed by re-introducing the recombinant chromosome again into the same genetic background. The analogous effect was observed in the line of winter cultivar Alcedo with the similar alien fragment in 2AS chromosome inherited from Ae. markgrafi i . Introgression of 5S chromosome of Aegilops speltoides carrying the gene Ha-Sp for grain softness into hard-grain bread wheat cultivars resulted in obtaining the genotypes with soft grain texture. Combining two dominant genes for grain softness Ha and Ha-Sp in one genotype allowed us to obtain the plants with grain having the new milling properties -very low vitreousness (about 30 %) and small particle size (about 10 μm).

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The effects on grain endosperm structure of an introgression from Aegilops speltoides Tausch. into chromosome 5A of bread wheat

Cited by 17 publications

References 23 publications

Properties of grain, flour and dough in bread wheat lines with Aegilops markgrafii introgressions

Properties of grain, flour and dough in bread wheat lines with Aegilops markgrafii introgressions

The development of a new bread wheat genotype carrying two loci for endosperm softness

Enlargement of the Genetic Diversity for Grain Quality in Bread Wheat Through Alien Introgression

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